Amplifier



FIG. 1 is a front isometric view of an embodiment of an amplifiershowing my new design.

FIG. 2 is a front elevation view of the embodiment.

FIG. 3 is a back elevation view of the embodiment.

FIG. 4 is a top plan view of the embodiment.

FIG. 5 is a bottom plan view of the embodiment.

FIG. 6 is a left side elevation view of the embodiment; and,

FIG. 7 is a right side elevation view of the embodiment.

The broken lines shown in the drawings are for illustrative purposesonly and form no part of the claimed design.

I claim the ornamental design for an amplifier, as shown and described.